Throw down a war banner at your feet that increases the critical damage of party or raid members within 40 yards of the banner by 20%. Lasts 10 sec.

You can Intervene to your war banner.

Skull Banner is a core warrior ability learned at level 87. With it, warriors can plant a banner on the ground that temporarily buffs the critical damage of party and raid members within range. Warriors can also use [Intervene] on the banner.